Pain in my upper-rightgum has me flossing again. Perhaps too
vigorously, as it now feels lacerated.

The current theory about
how 4:20 came to be stoner slang for time to smoke dope
(happy 4/20 everyone) traces it to the time Albert
Hoffman recorded dosing himself for the first-ever
intentional LSD trip (on, I believe 4/19/43).